diff options
Diffstat (limited to 'compiler/rustc_codegen_cranelift')
| -rw-r--r-- | compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs | 5 |
1 files changed, 4 insertions, 1 deletions
diff --git a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs index 19e5adc2538..35f0ccff3f9 100644 --- a/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs +++ b/compiler/rustc_codegen_cranelift/src/intrinsics/mod.rs @@ -328,6 +328,9 @@ fn codegen_float_intrinsic_call<'tcx>( sym::fabsf64 => ("fabs", 1, fx.tcx.types.f64, types::F64), sym::fmaf32 => ("fmaf", 3, fx.tcx.types.f32, types::F32), sym::fmaf64 => ("fma", 3, fx.tcx.types.f64, types::F64), + // FIXME: calling `fma` from libc without FMA target feature uses expensive sofware emulation + sym::fmuladdf32 => ("fmaf", 3, fx.tcx.types.f32, types::F32), // TODO: use cranelift intrinsic analogous to llvm.fmuladd.f32 + sym::fmuladdf64 => ("fma", 3, fx.tcx.types.f64, types::F64), // TODO: use cranelift intrinsic analogous to llvm.fmuladd.f64 sym::copysignf32 => ("copysignf", 2, fx.tcx.types.f32, types::F32), sym::copysignf64 => ("copysign", 2, fx.tcx.types.f64, types::F64), sym::floorf32 => ("floorf", 1, fx.tcx.types.f32, types::F32), @@ -381,7 +384,7 @@ fn codegen_float_intrinsic_call<'tcx>( let layout = fx.layout_of(ty); let res = match intrinsic { - sym::fmaf32 | sym::fmaf64 => { + sym::fmaf32 | sym::fmaf64 | sym::fmuladdf32 | sym::fmuladdf64 => { CValue::by_val(fx.bcx.ins().fma(args[0], args[1], args[2]), layout) } sym::copysignf32 | sym::copysignf64 => { |